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"""Tests for jslex."""
# originally from https://bitbucket.org/ned/jslex
from django.test import SimpleTestCase
from django.utils.jslex import JsLexer, prepare_js_for_gettext
class JsTokensTest(SimpleTestCase):
LEX_CASES = [
# ids
("a ABC $ _ a123", ["id a", "id ABC", "id $", "id _", "id a123"]),
(
"\\u1234 abc\\u0020 \\u0065_\\u0067",
["id \\u1234", "id abc\\u0020", "id \\u0065_\\u0067"],
),
# numbers
(
"123 1.234 0.123e-3 0 1E+40 1e1 .123",
[
"dnum 123",
"dnum 1.234",
"dnum 0.123e-3",
"dnum 0",
"dnum 1E+40",
"dnum 1e1",
"dnum .123",
],
),
("0x1 0xabCD 0XABcd", ["hnum 0x1", "hnum 0xabCD", "hnum 0XABcd"]),
("010 0377 090", ["onum 010", "onum 0377", "dnum 0", "dnum 90"]),
("0xa123ghi", ["hnum 0xa123", "id ghi"]),
# keywords
(
"function Function FUNCTION",
["keyword function", "id Function", "id FUNCTION"],
),
(
"const constructor in inherits",
["keyword const", "id constructor", "keyword in", "id inherits"],
),
("true true_enough", ["reserved true", "id true_enough"]),
# strings
(""" 'hello' "hello" """, ["string 'hello'", 'string "hello"']),
(
r""" 'don\'t' "don\"t" '"' "'" '\'' "\"" """,
[
r"""string 'don\'t'""",
r'''string "don\"t"''',
r"""string '"'""",
r'''string "'"''',
r"""string '\''""",
r'''string "\""''',
],
),
(r'"ƃuıxǝ⅂ ʇdıɹɔsɐʌɐſ\""', [r'string "ƃuıxǝ⅂ ʇdıɹɔsɐʌɐſ\""']),
# comments
("a//b", ["id a", "linecomment //b"]),
(
"/****/a/=2//hello",
["comment /****/", "id a", "punct /=", "dnum 2", "linecomment //hello"],
),
(
"/*\n * Header\n */\na=1;",
["comment /*\n * Header\n */", "id a", "punct =", "dnum 1", "punct ;"],
),
# punctuation
("a+++b", ["id a", "punct ++", "punct +", "id b"]),
# regex
(r"a=/a*/,1", ["id a", "punct =", "regex /a*/", "punct ,", "dnum 1"]),
(r"a=/a*[^/]+/,1", ["id a", "punct =", "regex /a*[^/]+/", "punct ,", "dnum 1"]),
(r"a=/a*\[^/,1", ["id a", "punct =", r"regex /a*\[^/", "punct ,", "dnum 1"]),
(r"a=/\//,1", ["id a", "punct =", r"regex /\//", "punct ,", "dnum 1"]),
# next two are from https://www-archive.mozilla.org/js/language/js20-2002-04/rationale/syntax.html#regular-expressions # NOQA
(
'for (var x = a in foo && "</x>" || mot ? z:/x:3;x<5;y</g/i) {xyz(x++);}',
[
"keyword for",
"punct (",
"keyword var",
"id x",
"punct =",
"id a",
"keyword in",
"id foo",
"punct &&",
'string "</x>"',
"punct ||",
"id mot",
"punct ?",
"id z",
"punct :",
"regex /x:3;x<5;y</g",
"punct /",
"id i",
"punct )",
"punct {",
"id xyz",
"punct (",
"id x",
"punct ++",
"punct )",
"punct ;",
"punct }",
],
),
(
'for (var x = a in foo && "</x>" || mot ? z/x:3;x<5;y</g/i) {xyz(x++);}',
[
"keyword for",
"punct (",
"keyword var",
"id x",
"punct =",
"id a",
"keyword in",
"id foo",
"punct &&",
'string "</x>"',
"punct ||",
"id mot",
"punct ?",
"id z",
"punct /",
"id x",
"punct :",
"dnum 3",
"punct ;",
"id x",
"punct <",
"dnum 5",
"punct ;",
"id y",
"punct <",
"regex /g/i",
"punct )",
"punct {",
"id xyz",
"punct (",
"id x",
"punct ++",
"punct )",
"punct ;",
"punct }",
],
),
# Various "illegal" regexes that are valid according to the std.
(
r"""/????/, /++++/, /[----]/ """,
["regex /????/", "punct ,", "regex /++++/", "punct ,", "regex /[----]/"],
),
# Stress cases from https://stackoverflow.com/questions/5533925/what-javascript-constructs-does-jslex-incorrectly-lex/5573409#5573409 # NOQA
(r"""/\[/""", [r"""regex /\[/"""]),
(r"""/[i]/""", [r"""regex /[i]/"""]),
(r"""/[\]]/""", [r"""regex /[\]]/"""]),
(r"""/a[\]]/""", [r"""regex /a[\]]/"""]),
(r"""/a[\]]b/""", [r"""regex /a[\]]b/"""]),
(r"""/[\]/]/gi""", [r"""regex /[\]/]/gi"""]),
(r"""/\[[^\]]+\]/gi""", [r"""regex /\[[^\]]+\]/gi"""]),
(
r"""
rexl.re = {
NAME: /^(?![0-9])(?:\w)+|^"(?:[^"]|"")+"/,
UNQUOTED_LITERAL: /^@(?:(?![0-9])(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/,
QUOTED_LITERAL: /^'(?:[^']|'')*'/,
NUMERIC_LITERAL: /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/,
SYMBOL: /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/
};
""", # NOQA
[
"id rexl",
"punct .",
"id re",
"punct =",
"punct {",
"id NAME",
"punct :",
r"""regex /^(?![0-9])(?:\w)+|^"(?:[^"]|"")+"/""",
"punct ,",
"id UNQUOTED_LITERAL",
"punct :",
r"""regex /^@(?:(?![0-9])(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/""",
"punct ,",
"id QUOTED_LITERAL",
"punct :",
r"""regex /^'(?:[^']|'')*'/""",
"punct ,",
"id NUMERIC_LITERAL",
"punct :",
r"""regex /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/""",
"punct ,",
"id SYMBOL",
"punct :",
r"""regex /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/""", # NOQA
"punct }",
"punct ;",
],
),
(
r"""
rexl.re = {
NAME: /^(?![0-9])(?:\w)+|^"(?:[^"]|"")+"/,
UNQUOTED_LITERAL: /^@(?:(?![0-9])(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/,
QUOTED_LITERAL: /^'(?:[^']|'')*'/,
NUMERIC_LITERAL: /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/,
SYMBOL: /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/
};
str = '"';
""", # NOQA
[
"id rexl",
"punct .",
"id re",
"punct =",
"punct {",
"id NAME",
"punct :",
r"""regex /^(?![0-9])(?:\w)+|^"(?:[^"]|"")+"/""",
"punct ,",
"id UNQUOTED_LITERAL",
"punct :",
r"""regex /^@(?:(?![0-9])(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/""",
"punct ,",
"id QUOTED_LITERAL",
"punct :",
r"""regex /^'(?:[^']|'')*'/""",
"punct ,",
"id NUMERIC_LITERAL",
"punct :",
r"""regex /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/""",
"punct ,",
"id SYMBOL",
"punct :",
r"""regex /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/""", # NOQA
"punct }",
"punct ;",
"id str",
"punct =",
"""string '"'""",
"punct ;",
],
),
(
r' this._js = "e.str(\"" + this.value.replace(/\\/g, "\\\\")'
r'.replace(/"/g, "\\\"") + "\")"; ',
[
"keyword this",
"punct .",
"id _js",
"punct =",
r'''string "e.str(\""''',
"punct +",
"keyword this",
"punct .",
"id value",
"punct .",
"id replace",
"punct (",
r"regex /\\/g",
"punct ,",
r'string "\\\\"',
"punct )",
"punct .",
"id replace",
"punct (",
r'regex /"/g',
"punct ,",
r'string "\\\""',
"punct )",
"punct +",
r'string "\")"',
"punct ;",
],
),
]
def make_function(input, toks):
def test_func(self):
lexer = JsLexer()
result = [
"%s %s" % (name, tok) for name, tok in lexer.lex(input) if name != "ws"
]
self.assertEqual(result, toks)
return test_func
for i, (input, toks) in enumerate(JsTokensTest.LEX_CASES):
setattr(JsTokensTest, "test_case_%d" % i, make_function(input, toks))
GETTEXT_CASES = (
(
r"""
a = 1; /* /[0-9]+/ */
b = 0x2a0b / 1; // /[0-9]+/
c = 3;
""",
r"""
a = 1; /* /[0-9]+/ */
b = 0x2a0b / 1; // /[0-9]+/
c = 3;
""",
),
(
r"""
a = 1.234e-5;
/*
* /[0-9+/
*/
b = .0123;
""",
r"""
a = 1.234e-5;
/*
* /[0-9+/
*/
b = .0123;
""",
),
(
r"""
x = y / z;
alert(gettext("hello"));
x /= 3;
""",
r"""
x = y / z;
alert(gettext("hello"));
x /= 3;
""",
),
(
r"""
s = "Hello \"th/foo/ere\"";
s = 'He\x23llo \'th/foo/ere\'';
s = 'slash quote \", just quote "';
""",
r"""
s = "Hello \"th/foo/ere\"";
s = "He\x23llo \'th/foo/ere\'";
s = "slash quote \", just quote \"";
""",
),
(
r"""
s = "Line continuation\
continued /hello/ still the string";/hello/;
""",
r"""
s = "Line continuation\
continued /hello/ still the string";"REGEX";
""",
),
(
r"""
var regex = /pattern/;
var regex2 = /matter/gm;
var regex3 = /[*/]+/gm.foo("hey");
""",
r"""
var regex = "REGEX";
var regex2 = "REGEX";
var regex3 = "REGEX".foo("hey");
""",
),
(
r"""
for (var x = a in foo && "</x>" || mot ? z:/x:3;x<5;y</g/i) {xyz(x++);}
for (var x = a in foo && "</x>" || mot ? z/x:3;x<5;y</g/i) {xyz(x++);}
""",
r"""
for (var x = a in foo && "</x>" || mot ? z:"REGEX"/i) {xyz(x++);}
for (var x = a in foo && "</x>" || mot ? z/x:3;x<5;y<"REGEX") {xyz(x++);}
""",
),
(
"""
\\u1234xyz = gettext('Hello there');
""",
r"""
Uu1234xyz = gettext("Hello there");
""",
),
)
class JsToCForGettextTest(SimpleTestCase):
pass
def make_function(js, c):
def test_func(self):
self.assertEqual(prepare_js_for_gettext(js), c)
return test_func
for i, pair in enumerate(GETTEXT_CASES):
setattr(JsToCForGettextTest, "test_case_%d" % i, make_function(*pair))
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